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Rein CPE0039 Engine Coolant Reservoir Cap - RightOE Quality 60-Day Returns
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Part #: CPE0039

Rein CPE0039 Engine Coolant Reservoir Cap - Right

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⚙️ 272 vehicles fit this part
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🚗Fitment: Audi and Volkswagen, Q3, Q5 PHEV, Atlas, Atlas Cross Sport, ID.4, TT RS Quattro, TTS Quattro, Arteon, Golf, GTI, Jetta, Passat, A3, A3 Quattro, RS3, S3, TT Quattro, e-Golf, Tiguan, Beetle, Golf Alltrack, Golf R, Golf SportWagen, A3 Sportback e-tron, A8 Quattro, Q3 Quattro, S8, TT, Tiguan Limited, CC, Golf City, and Passat CC
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Not what you need? Click here for all Engine Coolant Reservoir Cap options

Reliable Engine Coolant Reservoir Cap for Audi and Volkswagen

The Rein CPE0039 engine coolant reservoir cap is engineered to meet the specific requirements of various Audi and Volkswagen models. Designed as a direct fit replacement, this expansion tank cap ensures proper pressure regulation and coolant system integrity.

Key Features of Rein CPE0039 Engine Coolant Reservoir Cap

  • Manufactured to strict engineering standards and original equipment specifications
  • Direct fit for precise installation on compatible vehicles
  • Meets or exceeds pressure specifications required by original equipment manufacturers
  • Produced by an original equipment supplier ensuring OE quality
  • Durable black finish for corrosion resistance and longevity

Detailed Product Description

The Rein CPE0039 expansion tank cap is designed specifically for applications in Audi and Volkswagen vehicles, including models such as the Audi A3, A7 Sportback, Q5 PHEV, Volkswagen Golf, Tiguan, and others. This cap maintains the correct pressure within the engine coolant reservoir, preventing coolant loss and overheating. With dimensions of 3.5 inches in length and width and a height of 0.75 inches, it fits seamlessly into the cooling system. Manufactured in Germany, this cap reflects Rein's commitment to quality and precision engineering.

Compatible Vehicles and Common Issues Addressed

  • Compatible with Audi A3, A3 Quattro, A7 Sportback, Q3, Q5 PHEV, and Volkswagen Golf, Tiguan, Passat, and more
  • Prevents coolant leaks caused by worn or damaged reservoir caps
  • Maintains proper system pressure to avoid engine overheating
  • Eliminates coolant contamination from external debris
  • Helps avoid engine damage due to improper coolant system sealing

Installation Notes and Tips

  • Ensure the engine is cool before removing the old reservoir cap to avoid injury
  • Clean the reservoir neck to remove any debris before installing the new cap
  • Install the Rein CPE0039 cap by pressing down and turning until it locks securely
  • Verify the cap is properly seated to maintain system pressure and prevent leaks

Quality Assurance and Warranty

Rein CPE0039 engine coolant reservoir cap is produced by an original equipment supplier and meets or exceeds OE pressure specifications. It comes with a warranty coverage of up to 24,000 miles, providing assurance of durability and reliable performance in your Audi or Volkswagen vehicle.

BrandRein
Part NumberCPE0039
Application TypeApplicationSpecific
ColorBlack
Container TypeBG
Country of OriginDE
Item Height0.7500
Item Length3.5000
Item Level GTIN888544080333
Item Qty1
Item UOMEA
Item Weight0.1400
Item Weight Unit UOMLB
Item Width3.5000
Link to Manufacturer Pagewww.reinautomotive.com
Product Desc Extended 240Rein OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life.
Product Desc Invoice 40Rein Expansion Tank Cap
Product Desc Long 80Rein OE Quality Expansion Tank Cap
Product Desc Short 20Expansion Tank Cap
Warranty Distance24000

This part fits 272 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2026AudiA3 Quattro2.0LL4N/A
2026AudiS32.0LL4N/A
2025AudiA3 Quattro2.0LL4N/A
2025AudiQ32.0LL4N/A
2025AudiQ4 e-tron-L--BATTERY EV (EV/BEV)N/A
2025AudiQ4 e-tron Sportback-L--BATTERY EV (EV/BEV)N/A
2025AudiQ5 PHEV2.0LL4Right
2025AudiRS32.5LL5N/A
2025AudiS32.0LL4N/A
2025VolkswagenAtlas2.0LL4N/A
2025VolkswagenAtlas Cross Sport2.0LL4N/A
2025VolkswagenGolf R2.0LL4N/A
2025VolkswagenGTI2.0LL4N/A
2025VolkswagenID. Buzz-L--BATTERY EV (EV/BEV)N/A
2025VolkswagenID.4-L--BATTERY EV (EV/BEV)N/A
2025VolkswagenJetta1.5LL4N/A
2025VolkswagenTaos1.5LL4N/A
2025VolkswagenTiguan2.0LL4N/A
2024AudiA32.0LL4N/A
2024AudiA3 Quattro2.0LL4N/A
2024AudiQ32.0LL4N/A
2024AudiQ4 e-tron-L--BATTERY EV (EV/BEV)N/A
2024AudiQ4 e-tron Sportback-L--BATTERY EV (EV/BEV)N/A
2024AudiQ5 PHEV2.0LL4Right
2024AudiRS32.5LL5N/A
2024AudiS32.0LL4N/A
2024VolkswagenAtlas2.0LL4N/A
2024VolkswagenAtlas Cross Sport2.0LL4N/A
2024VolkswagenGolf R2.0LL4N/A
2024VolkswagenGTI2.0LL4N/A
2024VolkswagenID.4-L--BATTERY EV (EV/BEV)N/A
2024VolkswagenJetta1.5LL4N/A
2024VolkswagenTaos1.5LL4N/A
2024VolkswagenTiguan2.0LL4N/A
2023AudiA32.0LL4N/A
2023AudiA3 Quattro2.0LL4N/A
2023AudiQ32.0LL4N/A
2023AudiQ4 e-tron-L--BATTERY EV (EV/BEV)N/A
2023AudiQ4 e-tron Sportback-L--BATTERY EV (EV/BEV)N/A
2023AudiQ5 PHEV2.0LL4Right
2023AudiRS32.5LL5N/A
2023AudiS32.0LL4N/A
2023AudiTT Quattro2.0LL4N/A
2023AudiTTS Quattro2.0LL4N/A
2023VolkswagenArteon2.0LL4N/A
2023VolkswagenAtlas2.0LL4N/A
2023VolkswagenAtlas Cross Sport2.0LL4N/A
2023VolkswagenGolf R2.0LL4N/A
2023VolkswagenGTI2.0LL4N/A
2023VolkswagenID.4-L--BATTERY EV (EV/BEV)N/A
2023VolkswagenJetta1.5LL4N/A
2023VolkswagenTaos1.5LL4N/A
2023VolkswagenTiguan2.0LL4N/A
2022AudiA32.0LL4N/A
2022AudiA3 Quattro2.0LL4N/A
2022AudiA7 Sportback2.0LL4Right
2022AudiQ32.0LL4N/A
2022AudiQ4 e-tron-L--BATTERY EV (EV/BEV)N/A
2022AudiQ4 e-tron Sportback-L--BATTERY EV (EV/BEV)N/A
2022AudiQ5 PHEV2.0LL4Right
2022AudiRS32.5LL5N/A
2022AudiS32.0LL4N/A
2022AudiTT Quattro2.0LL4N/A
2022AudiTT RS Quattro2.5LL5N/A
2022AudiTTS Quattro2.0LL4N/A
2022VolkswagenArteon2.0LL4N/A
2022VolkswagenAtlas2.0LL4N/A
2022VolkswagenAtlas3.6LV6N/A
2022VolkswagenAtlas Cross Sport2.0LL4N/A
2022VolkswagenAtlas Cross Sport3.6LV6N/A
2022VolkswagenGolf R2.0LL4N/A
2022VolkswagenGTI2.0LL4N/A
2022VolkswagenID.4-L--ELECTRICN/A
2022VolkswagenJetta1.5LL4N/A
2022VolkswagenPassat2.0LL4N/A
2022VolkswagenTaos1.5LL4N/A
2022VolkswagenTiguan2.0LL4N/A
2021AudiA7 Sportback2.0LL4Right
2021AudiA8 QuattroL Plug-In Hybrid3.0LV6Auxiliary
2021AudiQ32.0LL4N/A
2021AudiQ5 PHEV2.0LL4Right
2021AudiTT Quattro2.0LL4N/A
2021AudiTT RS Quattro2.5LL5N/A
2021AudiTTS Quattro2.0LL4N/A
2021VolkswagenArteon2.0LL4N/A
2021VolkswagenAtlas2.0LL4N/A
2021VolkswagenAtlas3.6LV6N/A
2021VolkswagenAtlas Cross Sport2.0LL4N/A
2021VolkswagenAtlas Cross Sport3.6LV6N/A
2021VolkswagenGolf1.4LL4N/A
2021VolkswagenGTI2.0LL4N/A
2021VolkswagenID.4-L--ELECTRICN/A
2021VolkswagenJetta1.4LL4N/A
2021VolkswagenJetta2.0LL4N/A
2021VolkswagenPassat2.0LL4N/A
2021VolkswagenTiguan2.0LL4N/A
2020AudiA32.0LL4N/A
2020AudiA3 Quattro2.0LL4N/A
2020AudiA8 QuattroL Plug-In Hybrid3.0LV6Auxiliary
2020AudiQ32.0LL4N/A
2020AudiQ5 PHEV2.0LL4Right
2020AudiRS32.5LL5N/A
2020AudiS32.0LL4N/A
2020AudiTT Quattro2.0LL4N/A
2020AudiTT RS Quattro2.5LL5N/A
2020AudiTTS Quattro2.0LL4N/A
2020VolkswagenArteon2.0LL4N/A
2020VolkswagenAtlas2.0LL4N/A
2020VolkswagenAtlas3.6LV6N/A
2020VolkswagenAtlas Cross Sport2.0LL4N/A
2020VolkswagenAtlas Cross Sport3.6LV6N/A
2020Volkswagene-Golf-L--N/A
2020VolkswagenGolf1.4LL4N/A
2020VolkswagenGTI2.0LL4N/A
2020VolkswagenJetta1.4LL4N/A
2020VolkswagenJetta2.0LL4N/A
2020VolkswagenPassat2.0LL4N/A
2020VolkswagenTiguan2.0LL4N/A
2019AudiA32.0LL4N/A
2019AudiA3 Quattro2.0LL4N/A
2019AudiQ32.0LL4N/A
2019AudiRS32.5LL5N/A
2019AudiS32.0LL4N/A
2019AudiTT Quattro2.0LL4N/A
2019AudiTT RS Quattro2.5LL5N/A
2019AudiTTS Quattro2.0LL4N/A
2019VolkswagenArteon2.0LL4N/A
2019VolkswagenAtlas2.0LL4N/A
2019VolkswagenAtlas3.6LV6N/A
2019VolkswagenBeetle2.0LL4N/A
2019Volkswagene-Golf-L--ELECTRICN/A
2019VolkswagenGolf1.4LL4N/A
2019VolkswagenGolf Alltrack1.8LL4N/A
2019VolkswagenGolf R2.0LL4N/A
2019VolkswagenGolf SportWagen1.4LL4N/A
2019VolkswagenGolf SportWagen1.8LL4N/A
2019VolkswagenGTI2.0LL4N/A
2019VolkswagenJetta1.4LL4N/A
2019VolkswagenJetta2.0LL4N/A
2019VolkswagenPassat2.0LL4N/A
2019VolkswagenTiguan2.0LL4N/A
2018AudiA32.0LL4N/A
2018AudiA3 Quattro2.0LL4N/A
2018AudiA3 Sportback e-tron1.4LL4N/A
2018AudiA8 Quattro3.0LV6N/A
2018AudiA8 Quattro4.0LV8N/A
2018AudiQ32.0LL4N/A
2018AudiQ3 Quattro2.0LL4N/A
2018AudiRS32.5LL5N/A
2018AudiS32.0LL4N/A
2018AudiS84.0LV8N/A
2018AudiTT1.8LL4N/A
2018AudiTT Quattro2.0LL4N/A
2018AudiTT RS Quattro2.5LL5N/A
2018AudiTTS Quattro2.0LL4N/A
2018VolkswagenAtlas2.0LL4N/A
2018VolkswagenAtlas3.6LV6N/A
2018VolkswagenBeetle2.0LL4N/A
2018Volkswagene-Golf-L--ELECTRICN/A
2018VolkswagenGolf1.8LL4N/A
2018VolkswagenGolf Alltrack1.8LL4N/A
2018VolkswagenGolf R2.0LL4N/A
2018VolkswagenGolf SportWagen1.8LL4N/A
2018VolkswagenGTI2.0LL4N/A
2018VolkswagenJetta1.8LL4N/A
2018VolkswagenPassat2.0LL4N/A
2018VolkswagenTiguan2.0LL4N/A
2018VolkswagenTiguan Limited2.0LL4N/A
2017AudiA32.0LL4N/A
2017AudiA3 Quattro2.0LL4N/A
2017AudiA3 Sportback e-tron1.4LL4N/A
2017AudiA8 Quattro3.0LV6N/A
2017AudiA8 Quattro4.0LV8N/A
2017AudiQ32.0LL4N/A
2017AudiQ3 Quattro2.0LL4GASN/A
2017AudiRS32.5LL5N/A
2017AudiS32.0LL4N/A
2017AudiS84.0LV8N/A
2017AudiTT Quattro2.0LL4N/A
2017AudiTTS Quattro2.0LL4N/A
2017VolkswagenBeetle1.8LL4N/AFrom 6/1/17
2017VolkswagenBeetle2.0LL4N/AFrom 6/1/17
2017VolkswagenCC3.6LV6N/A
2017Volkswagene-Golf-L--ELECTRICN/A
2017VolkswagenGolf1.8LL4N/A
2017VolkswagenGolf Alltrack1.8LL4N/A
2017VolkswagenGolf R2.0LL4N/A
2017VolkswagenGolf SportWagen1.8LL4N/A
2017VolkswagenGTI2.0LL4N/A
2017VolkswagenJetta1.8LL4N/A
2017VolkswagenTiguan2.0LL4N/A
2017VolkswagenTiguan Limited2.0LL4N/A
2016AudiA31.8LL4N/A
2016AudiA32.0LL4DIESELN/A
2016AudiA3 Quattro2.0LL4N/A
2016AudiA3 Sportback e-tron1.4LL4N/A
2016AudiA8 Quattro3.0LV6GASN/A
2016AudiA8 Quattro4.0LV8N/A
2016AudiA8 Quattro6.3LW12N/A
2016AudiQ32.0LL4GASN/A
2016AudiQ3 Quattro2.0LL4N/A
2016AudiS32.0LL4N/A
2016AudiS84.0LV8N/A
2016AudiTT2.0LL4N/A
2016AudiTT Quattro2.0LL4N/A
2016AudiTTS Quattro2.0LL4N/A
2016VolkswagenCC3.6LV6N/A
2016Volkswagene-Golf-L--ELECTRICN/A
2016VolkswagenGolf1.8LL4N/A
2016VolkswagenGolf R2.0LL4N/A
2016VolkswagenGolf SportWagen1.8LL4N/A
2016VolkswagenGTI2.0LL4N/A
2016VolkswagenTiguan2.0LL4N/A
2015AudiA31.8LL4N/A
2015AudiA32.0LL4DIESELN/A
2015AudiA3 Quattro2.0LL4N/A
2015AudiA8 Quattro3.0LV6GASN/A
2015AudiA8 Quattro4.0LV8N/A
2015AudiA8 Quattro6.3LW12N/A
2015AudiQ32.0LL4GASN/A
2015AudiQ3 Quattro2.0LL4N/A
2015AudiS32.0LL4N/A
2015AudiS84.0LV8N/A
2015VolkswagenCC3.6LV6N/A
2015Volkswagene-Golf-L--ELECTRICN/A
2015VolkswagenGolf1.8LL4N/A
2015VolkswagenGolf2.0LL4DIESELN/A
2015VolkswagenGolf R2.0LL4N/A
2015VolkswagenGolf SportWagen1.8LL4N/A
2015VolkswagenGolf SportWagen2.0LL4DIESELN/A
2015VolkswagenGTI2.0LL4N/A
2015VolkswagenPassat2.0LL4DIESELN/A
2015VolkswagenTiguan2.0LL4N/A
2014AudiA8 Quattro3.0LV6GASN/A
2014AudiA8 Quattro4.0LV8N/A
2014AudiA8 Quattro6.3LW12N/A
2014AudiS84.0LV8N/A
2014VolkswagenCC3.6LV6N/A
2014VolkswagenTiguan2.0LL4N/A
2013AudiA8 Quattro3.0LV6N/A
2013AudiA8 Quattro4.0LV8N/A
2013AudiA8 Quattro6.3LW12N/A
2013AudiS84.0LV8N/A
2013VolkswagenCC3.6LV6N/A
2013VolkswagenTiguan2.0LL4N/A
2012AudiA8 Quattro4.2LV8N/A
2012AudiA8 Quattro6.3LW12N/A
2012VolkswagenCC3.6LV6N/A
2012VolkswagenTiguan2.0LL4N/A
2011AudiA8 Quattro4.2LV8N/A
2011VolkswagenCC3.6LV6N/A
2011VolkswagenTiguan2.0LL4N/A
2010AudiTT2.0LL4N/Aw/Black Cap
2010AudiTT Quattro2.0LL4N/Aw/Black Cap
2010AudiTTS Quattro2.0LL4N/Aw/Black Cap
2010VolkswagenCC3.6LV6N/A
2010VolkswagenGolf City2.0LL4N/Aw/Black Cap
2010VolkswagenPassat3.6LV6N/A
2010VolkswagenPassat CC3.6LV6N/A
2010VolkswagenTiguan2.0LL4N/A
2009AudiTT2.0LL4N/Aw/Black Cap
2009AudiTT Quattro2.0LL4N/Aw/Black Cap
2009AudiTTS Quattro2.0LL4N/Aw/Black Cap
2009VolkswagenCC3.6LV6N/A
2009VolkswagenGolf City2.0LL4N/AFrom 4/13/09, w/Black Cap
2009VolkswagenPassat3.6LV6N/A
2009VolkswagenPassat CC3.6LV6N/A
2009VolkswagenTiguan2.0LL4N/A
2008AudiTT2.0LL4N/Aw/Black Cap
2008VolkswagenPassat3.6LV6N/A
2007VolkswagenPassat3.6LV6N/A
2006VolkswagenPassat3.6LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.